<form method="post" action="#" enctype="multipart/form-data" accept-charset="utf-8">
  <p><input type="file" name="file" /></p>
  <p><input type="submit" /></p>
</form>

$temp = $_FILES["file"]["tmp_name"];

$fobject = new SplFileObject($temp);
$fobject->setFlags(SplFileObject::READ_CSV);
$fobject->setCsvControl(',', '"');

$data = [];
foreach($fobject as $line) {
$data[] = $line;
  print_r($line);
}